Just had a quote done for cavity wall insulation. We were told that because we have an open fire then by law we need a vent putting in. Is that really true? Not sure what the purpose of putting CWI in is, if we are then going to put a hole in our living room wall?
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Cavity wall insulation - do we really need a room vent?
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OhYouBadBadKitten · 30/11/2010 14:11
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